CN109245085A - DC energy storage backup power supply and control method with peak load shifting function - Google Patents
DC energy storage backup power supply and control method with peak load shifting function Download PDFInfo
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- CN109245085A CN109245085A CN201811184193.5A CN201811184193A CN109245085A CN 109245085 A CN109245085 A CN 109245085A CN 201811184193 A CN201811184193 A CN 201811184193A CN 109245085 A CN109245085 A CN 109245085A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004891 communication Methods 0.000 claims abstract description 48
- 238000007599 discharging Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/14—Balancing the load in a network
-
- H02J13/0003—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of DC energy storage backup power supply with peak load shifting function, including control mainboard, CAN communication circuit, voltage and current Acquisition Circuit, battery, DC-DC converter, DTU communication module and Cloud Server；The control mainboard is connected by the DTU communication module with the Cloud Server；The voltage and current Acquisition Circuit, battery and DC-DC converter are connected by the CAN communication circuit with the control mainboard；The battery is connected with the DC-DC converter, and the DC-DC converter is connected with load of base station.The DC energy storage backup power supply control method with peak load shifting function that the present invention also provides a kind of.The present invention can mitigate load of the power grid in crest segment rate period when specifically used significantly, and create huge economic value using electricity using at the peak time price difference.
Description
Technical field
The present invention relates to the communications fields, in particular to the DC energy storage backup power supply and controlling party of peak load shifting function
Method.
Background technique
In current all base stations, in order to ensure that communication is uninterrupted, in addition to needing to supply base station by power grid
Other than electricity, it is also necessary to be powered using backup power supply；Wherein, power grid needs first to connect an AC-DC converter, will hand over
Stream becomes direct current, and AC-DC converter connects load of base station by DC bus again, to realize the power supply to base station；And standby
Power supply is then directly connected to load of base station, carries out auxiliary power supply to base station to realize；Currently, base station backup power supply mainly uses lead
Sour battery or lithium battery.Meanwhile existing base station power is nominal all bigger, substantially all in tens kilowatt hours；Using electricity
When net is powered base station, since power grid has point of peak and low ebb, when being in peak times of power consumption, the power generation in power plant
Scale has to be larger than electricity consumption scale, otherwise will will cause the situation of electric energy deficiency, in this case, if base station can pass through
Backup power supply is powered, it will can be greatly reduced shortage of electric power situation；When being in the low power consumption phase, exhaustless electric energy
It can waste again, in this case, if it is possible to extra electric energy be stored, electric energy will can be greatly reduced
Waste.
But there are following defects for existing base station backup power supply:
1, existing base station backup power supply only has the function of backup power supply, and distribution-free formula energy-storage function, therefore, it is impossible to match
It closes power grid and carries out peak load shifting control；
2, existing base station backup power supply does not have communication remote control, telemetry function, so that when specifically used, it is inconvenient
In O&M and maintenance；
3, currently, the retired battery of automobile is more and more, existing base station backup power supply is all only capable of using normal cell, and nothing
Method is unfavorable for improving the secondary use to the retired battery of automobile using nonstandard batteries such as the retired batteries of automobile.
Summary of the invention
One of the technical problem to be solved in the present invention is to provide a kind of DC energy storage standby with peak load shifting function
Power supply can effectively solve distribution-free formula energy-storage function existing in the prior art by the DC energy storage backup power supply, be not easy to
O&M and maintenance can not utilize the problem of nonstandard batteries such as automobile retired battery.
The present invention is realized in one of technical problem: the DC energy storage backup power supply with peak load shifting function, institute
Stating DC energy storage backup power supply includes a control mainboard, a CAN communication circuit, a voltage and current Acquisition Circuit, a battery, one
DC-DC converter, a DTU communication module and a Cloud Server；The control mainboard by the DTU communication module with it is described
Cloud Server is connected；The voltage and current Acquisition Circuit, battery and DC-DC converter pass through the CAN communication circuit
It is connected with the control mainboard；The battery is connected with the DC-DC converter, and the DC-DC converter and base station are negative
Load is connected.
Further, the DC energy storage backup power supply further includes a display screen and a keyboard or touch screen；It is described aobvious
Display screen and keyboard or touch screen are connected with the control mainboard.
Further, the control mainboard is ARM control panel.
Further, the battery is the retired battery of automobile with CAN interface.
The second technical problem to be solved by the present invention is to provide a kind of DC energy storage standby with peak load shifting function
Power control method can effectively solve distribution-free formula energy-storage function existing in the prior art by this method, be not easy to O&M
The problem of with overhauling, can not be using nonstandard batteries such as the retired batteries of automobile.
The present invention is realized in the twos' of technical problem: the DC energy storage backup power supply with peak load shifting function controls
Method, the method need to use above-mentioned DC energy storage backup power supply；The described method includes:
Control mainboard is communicated by CAN communication circuit with voltage and current Acquisition Circuit, and is acquired by voltage and current
Circuit acquires the data on DC bus in real time, and when detecting DC bus to load of base station normal power supply, control mainboard
It is charged the battery according to the operating parameter control DC-DC converter of setting；When detecting DC bus power down, control master
Plate discharges to battery according to the operating parameter control DC-DC converter of setting；
Cooperate power grid to carry out peak load shifting control to DC energy storage backup power supply, specifically include:
When being in flat section rate period, control mainboard control DC-DC converter stopping is charged the battery and is put
Electricity；
When in paddy section rate period, control mainboard control DC-DC converter is charged the battery, until battery
When capacity is greater than the first parameter SOC1 of setting, control mainboard controls charging of the DC-DC converter stopping to battery；
When being in crest segment rate period, control mainboard control DC-DC converter discharges to battery, until battery
When capacity is less than the second parameter SOC2 of setting, control mainboard controls electric discharge of the DC-DC converter stopping to battery.
Further, when battery battery retired for automobile, the method also includes:
After the retired battery of automobile is linked into DC energy storage backup power supply, control mainboard is obtained by CAN communication circuit
Take the battery parameter of the retired battery of automobile；The battery parameter includes charging voltage, charging current, discharge voltage, discharge current
And Protection parameters；
Operating parameter needed for the battery parameter that control mainboard will acquire automatically updates generation；Operating parameter packet needed for described
Include charging voltage, charging current, discharge voltage, discharge current and Protection parameters；
Control mainboard is controlled DC-DC converter and is charged to the retired battery of automobile by the required operating parameter generated
And electric discharge.
Further, the control mainboard is charged the battery according to the operating parameter control DC-DC converter of setting
Include:
Charging coordinated control is carried out to the AC-DC converter in DC energy storage backup power supply and power grid, is specifically included:
Using the maximum output current of AC-DC converter in power grid as an operating parameter IADCMAXIt is arranged to control mainboard
In；
When battery is charged, control mainboard acquires load of base station electric current by voltage and current Acquisition Circuit in real time
Iload；
Control mainboard is according to IADCMAXAnd IloadCalculate maximum chargeable electric current Imaxcharge, Imaxcharge=IADCMAX*
Proportionality coefficient-Iload；
Control mainboard is according to the calculated chargeable electric current of maximum, charging electricity of the real time modifying DC-DC converter to battery
Stream.
Further, the method also includes: joint debugging control is carried out to DC energy storage backup power supply and power grid, it is specific to wrap
It includes:
When power grid in crest segment rate period heavy loads occurs or in the case where the stabilization of power grids, to the second parameter SOC2
It carries out turning down processing；
In the case where power grid is unstable, height-regulating processing is carried out to the second parameter SOC2.
Further, the method also includes: Cloud Server is communicated by DTU communication module with control mainboard, and
The operating parameter of DC energy storage backup power supply is set by Cloud Server or obtains the operation data of DC energy storage backup power supply；
Meanwhile when DC energy storage backup power supply occurs abnormal, exception information is actively reported to Cloud Server by control mainboard.
Further, the method also includes:
Control mainboard is communicated by CAN communication circuit with battery, and obtains the relevant information of battery in real time, including fill
Discharge voltage information, battery capacity information and charging and discharging currents information；
Control mainboard is communicated by CAN communication circuit with DC-DC converter, and obtains DC-DC converter in real time
Relevant information, including running state information, charging/discharging voltage information and charging and discharging currents information；
The charging/discharging voltage information of the charging/discharging voltage information of the battery that control mainboard will acquire and DC-DC converter into
Row compares, and if the difference of the two is greater than the tolerance value of setting, determines that the wiring of DC-DC converter and battery is different
Often, control mainboard shows exception on a display screen at this time.
The present invention has the advantage that
1, power grid can be cooperated to carry out peak load shifting control, in crest segment rate period, it is negative to base station to can control battery
It is loaded into capable electric discharge, to reduce load of base station to the electricity consumption of power grid；Paddy section rate period in, can control power grid to battery into
Row charging can form huge distributed energy storage by each DC energy storage backup power supply simultaneously as base station is again relatively more
Power station；Therefore, the present invention can mitigate load of the power grid in crest segment rate period when specifically used significantly, and available
Electricity using at the peak time price difference creates huge economic value；
It 2, can also be into using the communication of control mainboard and Cloud Server, it can be achieved that remotely check operation data, operating status
The setting of row operating parameter, therefore, can very convenient progress O&M and maintenance；
3, the retired battery of automobile can perfectly be used in DC energy storage backup power supply, realizes the two of the retired battery of automobile
Secondary utilization.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the functional block diagram for the DC energy storage backup power supply that the present invention has peak load shifting function.
Description of symbols:
100- DC energy storage backup power supply, 200- load of base station, 300-AC-DC converter, 400- power grid, 500- direct current are female
Line, 1- control mainboard, 2-CAN telecommunication circuit, 3- voltage and current Acquisition Circuit, 4- battery, 5-DC-DC converter, 6-DTU communication
Module, 7- Cloud Server, 8- display screen, 9- keyboard or touch screen.
Specific embodiment
It please refers to shown in Fig. 1, the present invention has the preferable implementation of the DC energy storage backup power supply 100 of peak load shifting function
Example, the DC energy storage backup power supply 100 include a control mainboard 1, a CAN communication circuit 2, a voltage and current Acquisition Circuit 3,
One battery 4, a DC-DC converter 5, a DTU communication module 6 and a Cloud Server 7；The control mainboard 1 passes through the DTU
Communication module 6 is connected with the Cloud Server 7；The voltage and current Acquisition Circuit 3, battery 4 and DC-DC converter 5 are equal
It is connected by the CAN communication circuit 2 with the control mainboard 1；The battery 4 is connected with the DC-DC converter 5,
The DC-DC converter 5 is connected with load of base station 200.In the specific implementation, power grid 400 can first and AC-DC converter 300
It is connected, AC-DC converter 300 is connected by DC bus 500 with load of base station 200 again, to realize power grid 400 to base
Stand load 200 power supply.
Wherein, the control mainboard 1 is core control panel, and operation logic, relay protective scheme, communication control of system etc. are all logical
The control mainboard 1 is crossed to realize；The CAN communication circuit 2 be mainly used for realizing between control mainboard 1 and DC-DC converter 5 with
And the communication between control mainboard 1 and battery 4, the CAN communication circuit 2 can using CTM1051 ADuM3201 chip come
It realizes；The voltage and current Acquisition Circuit 3 is mainly used for acquiring load of base station electric current and bus voltage, so as to according to acquisition
Load of base station electric current come after calculating charging current and judging whether DC energy storage backup power supply 100 enters according to bus voltage
Standby mode, the voltage and current Acquisition Circuit 3 are common in the art for acquiring a kind of circuit of electric current and voltage, are being had
When body is implemented, only need arbitrarily to select a kind of circuit that can be realized electric current and voltage data acquisition function from the prior art i.e.
Can, the acquisition sensor which is related to can be CSM1000S sensor or VSM500D sensor；
The battery 4 is stored for realizing the margin of energy and is powered when power grid 400 is powered off to load of base station 200；The DC-DC
Converter 5 is bilateral power devices, it can be achieved that charging to battery 4, the energy discharge of battery 4 can also be fed back to power grid
In 400；Communication interface of the DTU communication module 6 between control mainboard 1 and Cloud Server 7, it is a kind of dedicated for general
Serial data is converted to IP data or by IP data are converted to serial data and network is transmitted by wireless communication nothing
Line terminal equipment, in specific implementation, the DTU communication module 6 can be that GPRS DTU wireless communication module, 3G DTU is wireless
The various wireless communication modules such as communication module, 4G DTU wireless communication module；The Cloud Server 7 is straight for realizing remotely checking
Operation data, the operating status for flowing energy-storage standby power supply 100, can also be achieved remotely located operating parameter.
The DC energy storage backup power supply 100 further includes a display screen 8 and a keyboard or touch screen 9；The display screen 8
And keyboard or touch screen 9 are connected with the control mainboard 1.Wherein, the display screen 8 is for showing operation data, setting
Set parameter etc.；The keyboard or touch screen 9 are for realizing human-computer interaction.
The control mainboard 1 is ARM control panel, since ARM control panel is common control panel in single-chip microcontroller, specific real
Shi Shi only need to arbitrarily select one kind from existing ARM control panel, for example, TM4C1294, STM32F107 can be used
Or ARM control panel made of the ARM chip manufacturing such as STM32F425.
The battery 4 is that the retired battery of automobile with CAN interface in the specific implementation can be by the retired battery of automobile
It is directly connected in DC energy storage backup power supply 100 by CAN interface.
Please emphasis referring to Fig.1 shown in, the present invention has the DC energy storage backup power supply control method of peak load shifting function
Preferably implement, the method need to use above-mentioned DC energy storage backup power supply；The described method includes:
Control mainboard is communicated by CAN communication circuit with voltage and current Acquisition Circuit, and is acquired by voltage and current
Circuit acquires the data (including load of base station electric current and bus voltage) on DC bus in real time, and is detecting DC bus pair
When load of base station normal power supply, control mainboard is charged the battery according to the operating parameter control DC-DC converter of setting；?
When detecting DC bus power down, control mainboard discharges to battery according to the operating parameter control DC-DC converter of setting,
Even if DC energy storage backup power supply enters standby power mode, to support base station to work normally；
Cooperate power grid to carry out peak load shifting control to DC energy storage backup power supply, specifically include:
When being in flat section rate period, control mainboard control DC-DC converter stopping is charged the battery and is put
Electricity, DC energy storage backup power supply at this time are the equal of the backup power supply under a stationary state；
When in paddy section rate period, control mainboard control DC-DC converter is charged the battery, until battery
Capacity be greater than setting the first parameter SOC1 (first parameter SOC1 is the parameter that can be set, typically larger than 90%) when, control
Mainboard control DC-DC converter processed stops the charging to battery；
When being in crest segment rate period, control mainboard control DC-DC converter discharges to battery, to reduce base station
The electricity consumption of power grid, until the capacity of battery is less than the second parameter SOC2 set, (the second parameter SOC2 is standby
The capacity that power supply needs, typically larger than 50%) when, control mainboard controls DC-DC converter and stops electric discharge to battery.
When battery battery retired for automobile, the method also includes:
After the retired battery of automobile is linked into DC energy storage backup power supply, control mainboard is obtained by CAN communication circuit
Take the battery parameter of the retired battery of automobile；The battery parameter includes charging voltage, charging current, discharge voltage, discharge current
And Protection parameters；Before the retired battery of automobile is accessed DC energy storage backup power supply of the invention, need retired to automobile
Battery first carries out safety detection, only can just be linked into DC energy storage backup power supply after through safety detection；
Operating parameter needed for the battery parameter that control mainboard will acquire automatically updates generation；Operating parameter packet needed for described
Include charging voltage, charging current, discharge voltage, discharge current and Protection parameters；
Control mainboard is controlled DC-DC converter and is charged to the retired battery of automobile by the required operating parameter generated
And electric discharge.
The control mainboard is charged the battery according to the operating parameter control DC-DC converter of setting
Charging coordinated control is carried out to the AC-DC converter in DC energy storage backup power supply and power grid, is specifically included:
By the maximum output current of AC-DC converter in power grid, (maximum output current of AC-DC converter is that have in power grid
Limitation) it is used as an operating parameter IADCMAXIt is arranged into control mainboard；
When battery is charged, control mainboard acquires load of base station electric current by voltage and current Acquisition Circuit in real time
Iload；
Control mainboard is according to IADCMAXAnd IloadCalculate maximum chargeable electric current Imaxcharge, Imaxcharge=IADCMAX*
Proportionality coefficient-IloadIt (i.e. by the maximum output current of AC-DC converter in power grid first multiplied by proportionality coefficient, then subtracts and adopts in real time
The load of base station electric current of collection)；Wherein, proportionality coefficient generally takes 90%, to reserve a part of power headroom, is being embodied certainly
When, also it can modify proportionality coefficient according to actual needs；
Control mainboard is according to the calculated chargeable electric current of maximum, charging electricity of the real time modifying DC-DC converter to battery
Stream.
The method also includes: joint debugging control is carried out to DC energy storage backup power supply and power grid, is specifically included:
When power grid in crest segment rate period heavy loads occurs or in the case where the stabilization of power grids, to the second parameter SOC2
It carries out turning down processing, in this manner it is possible to which more some electric energy of feedback are to load of base station in crest segment rate period, so as to effective
Network load is reduced, and increases the economic benefits of base station；
In the case where power grid is unstable, height-regulating processing is carried out to the second parameter SOC2, in this way, DC energy storage backup power supply
More energy can be laid in, to cope with worse power grid environment, such as prevent from having a power failure for a long time.
The method also includes: Cloud Server is communicated by DTU communication module with control mainboard, and passes through cloud service
The operating parameter of DC energy storage backup power supply is arranged (for example, the first parameter SOC1 of setting, is arranged the second parameter SOC2, modification in device
Crest segment, paddy section, flat section time etc.), or the operation data of DC energy storage backup power supply is obtained, Cloud Server is getting operation
After data, operation data can be shown in WEB terminal or mobile phone terminal, to facilitate carry out O&M；Meanwhile in DC energy storage standby electricity
When source occurs abnormal, exception information is actively reported to Cloud Server by control mainboard, and quick sound can be made to failure to facilitate
It answers.
The method also includes:
Control mainboard is communicated by CAN communication circuit with battery, and obtains the relevant information of battery in real time, including fill
Discharge voltage information, battery capacity information and charging and discharging currents information；It, can be real after relevant information by obtaining battery in real time
Now it is conveyed on Cloud Server by the relevant information real-time display of battery to display screen or remotely, it can be with to maintain easily personnel
The operating condition of electrolytic cell in real time；
Control mainboard is communicated by CAN communication circuit with DC-DC converter, and obtains DC-DC converter in real time
Relevant information, including running state information, charging/discharging voltage information and charging and discharging currents information；By obtaining DC-DC in real time
After the relevant information of converter, it can be achieved that by the relevant information real-time display of DC-DC converter to display screen or long-range conveying
To on Cloud Server, with maintain easily personnel can be real-time the operating condition of electrolytic cell；
The charging/discharging voltage information of the charging/discharging voltage information of the battery that control mainboard will acquire and DC-DC converter into
Row compares, and if the difference of the two is greater than the tolerance value of setting, determines that the wiring of DC-DC converter and battery is different
Often, control mainboard shows exception on a display screen at this time；For example, when the information of voltage got from battery is 48V, and from
The information of voltage that DC-DC converter is read be 0V, at this time it is determined that between DC-DC converter and battery wiring it is different
Often, and exception information can be shown on display screen.
In conclusion the present invention has the advantage that
1, power grid can be cooperated to carry out peak load shifting control, in crest segment rate period, it is negative to base station to can control battery
It is loaded into capable electric discharge, to reduce load of base station to the electricity consumption of power grid；Paddy section rate period in, can control power grid to battery into
Row charging can form huge distributed energy storage by each DC energy storage backup power supply simultaneously as base station is again relatively more
Power station；Therefore, the present invention can mitigate load of the power grid in crest segment rate period when specifically used significantly, and available
Electricity using at the peak time price difference creates huge economic value；
It 2, can also be into using the communication of control mainboard and Cloud Server, it can be achieved that remotely check operation data, operating status
The setting of row operating parameter, therefore, can very convenient progress O&M and maintenance；
3, the retired battery of automobile can perfectly be used in DC energy storage backup power supply, realizes the two of the retired battery of automobile
Secondary utilization.
Although specific embodiments of the present invention have been described above, those familiar with the art should be managed
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this
The technical staff in field should be covered of the invention according to modification and variation equivalent made by spirit of the invention
In scope of the claimed protection.
Claims (10)
1. a kind of DC energy storage backup power supply with peak load shifting function, it is characterised in that: including a control mainboard, a CAN
Telecommunication circuit, a voltage and current Acquisition Circuit, a battery, a DC-DC converter, a DTU communication module and a Cloud Server；
The control mainboard is connected by the DTU communication module with the Cloud Server；The voltage and current Acquisition Circuit, battery
And DC-DC converter is connected by the CAN communication circuit with the control mainboard；The battery and the DC-DC
Converter is connected, and the DC-DC converter is connected with load of base station.
2. as described in claim 1 with the DC energy storage backup power supply of peak load shifting function, it is characterised in that: further include one
Display screen and a keyboard or touch screen；The display screen and keyboard or touch screen are connected with the control mainboard.
3. as described in claim 1 with the DC energy storage backup power supply of peak load shifting function, it is characterised in that: the control
Mainboard is ARM control panel.
4. as described in claim 1 with the DC energy storage backup power supply of peak load shifting function, it is characterised in that: the battery
For the retired battery of automobile with CAN interface.
5. a kind of DC energy storage backup power supply control method with peak load shifting function, it is characterised in that: the method need to make
With the DC energy storage backup power supply as described in claim 1-4 is any；The described method includes:
Control mainboard is communicated by CAN communication circuit with voltage and current Acquisition Circuit, and passes through voltage and current Acquisition Circuit
Data on acquisition DC bus in real time, and when detecting DC bus to load of base station normal power supply, control mainboard according to
The operating parameter control DC-DC converter of setting charges the battery；When detecting DC bus power down, control mainboard is pressed
It discharges according to the operating parameter control DC-DC converter of setting battery；
Cooperate power grid to carry out peak load shifting control to DC energy storage backup power supply, specifically include:
When being in flat section rate period, control mainboard control DC-DC converter stopping is charged the battery and is discharged；
When in paddy section rate period, control mainboard control DC-DC converter is charged the battery, until the capacity of battery
Greater than setting the first parameter SOC1 when, control mainboard controls DC-DC converter and stops charging to battery；
When being in crest segment rate period, control mainboard control DC-DC converter discharges to battery, until the capacity of battery
Less than setting the second parameter SOC2 when, control mainboard controls DC-DC converter and stops electric discharge to battery.
6. as claimed in claim 5 with the DC energy storage backup power supply control method of peak load shifting function, it is characterised in that:
When battery battery retired for automobile, the method also includes:
After the retired battery of automobile is linked into DC energy storage backup power supply, control mainboard obtains vapour by CAN communication circuit
The battery parameter of the retired battery of vehicle；The battery parameter include charging voltage, charging current, discharge voltage, discharge current and
Protection parameters；
Operating parameter needed for the battery parameter that control mainboard will acquire automatically updates generation；Operating parameter needed for described includes filling
Piezoelectric voltage, charging current, discharge voltage, discharge current and Protection parameters；
Control mainboard by generate required operating parameter, control DC-DC converter to the retired battery of automobile carry out charging and
Electric discharge.
7. as claimed in claim 5 with the DC energy storage backup power supply control method of peak load shifting function, it is characterised in that:
The control mainboard is charged the battery according to the operating parameter control DC-DC converter of setting
Charging coordinated control is carried out to the AC-DC converter in DC energy storage backup power supply and power grid, is specifically included:
Using the maximum output current of AC-DC converter in power grid as an operating parameter IADCMAXIt is arranged into control mainboard；
When battery is charged, control mainboard acquires load of base station electric current I by voltage and current Acquisition Circuit in real timeload；
Control mainboard is according to IADCMAXAnd IloadCalculate maximum chargeable electric current Imaxcharge, Imaxcharge=IADCMAX* ratio system
Number-Iload；
Control mainboard is according to the calculated chargeable electric current of maximum, charging current of the real time modifying DC-DC converter to battery.
8. as claimed in claim 5 with the DC energy storage backup power supply control method of peak load shifting function, it is characterised in that:
The method also includes: joint debugging control is carried out to DC energy storage backup power supply and power grid, is specifically included:
When power grid heavy loads occurs in crest segment rate period or in the case where the stabilization of power grids, carries out to the second parameter SOC2
Turn down processing；
In the case where power grid is unstable, height-regulating processing is carried out to the second parameter SOC2.
9. as claimed in claim 5 with the DC energy storage backup power supply control method of peak load shifting function, it is characterised in that:
The method also includes: Cloud Server is communicated by DTU communication module with control mainboard, and is arranged directly by Cloud Server
It flows the operating parameter of energy-storage standby power supply or obtains the operation data of DC energy storage backup power supply；Meanwhile after DC energy storage
When stand-by power source occurs abnormal, exception information is actively reported to Cloud Server by control mainboard.
10. having the DC energy storage backup power supply control method of peak load shifting function as claimed in claim 5, feature exists
In: the method also includes:
Control mainboard is communicated by CAN communication circuit with battery, and obtains the relevant information of battery, including charge and discharge in real time
Information of voltage, battery capacity information and charging and discharging currents information；
Control mainboard is communicated by CAN communication circuit with DC-DC converter, and obtains the correlation of DC-DC converter in real time
Information, including running state information, charging/discharging voltage information and charging and discharging currents information；
The charging/discharging voltage information for the battery that control mainboard will acquire and the charging/discharging voltage information of DC-DC converter are compared
It is right, and if the difference of the two is greater than the tolerance value of setting, determine that the wiring of DC-DC converter and battery is abnormal, this
When control mainboard show exception on a display screen.
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